Railroad train-shed.



Inf/afar 3 SHEETS-SHEET 1.

Patented June 30,

A. L. BUSH.

RAILROAD TRAIN SHED.

APPLICATION FILED NOV. l0, 1910.

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ILL. RUSH. RAILROAD TRAIN SHED. l APPLICATION IIIRD N0v.1o, 1910. g LSILLS Patented June 30, 1914.

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RAILROAD TRAIN SHED. APPLICATION FILED Nom-10, 1910.

Patented June 30, 1914.

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ABBAHAM L. BUSH, or gasa. ORANGE, NEW JERSEY.

RAILROAD raam-SHED.

' vniiplifnsto11 flied November 10, 1910. `Serial No. 591,600iv.

T0 all wlw/1)?, t may concern l Be it known thatl, ABRAHAM L. BUSH, a. citizen -of the United States, residing at East Orange, in the county of Essex and State of New Jersey`have invented a new and useful Improvement in Railroad Train- Sheds, of which the following is a specifica tion.

This invention relates to the type of train shed which is disclosed by my Letters Patent No. 855,160, dated May 28,1907,in which the roof is provided with a duct for the escape of steam, smoke and gases arranged lengthwise over the track.

The objects of this invention are to improve the construction of the smoke duct with a view of preventing the entrance ofexcessive amounts of snow or rain through the same and to improve the construction of the Ventilating duct leading through 'the wall of the duct from the underside of the roof. into the smoke duct with a view ofA facilitating the escape of steam or gases from underneath the roof, while preventing steam and gases from .being forced from the smoke duct through the V(Ventilating duct into the shed by the force of the exhaust."

In the accompanying drawings, consisting of three sheets: Figure l is a vertical section of the improved train shed at-right angles to the tracks. Figs. 2 and 3 are fragment-ary sections at right angles to Fig. 1, on lines 2--2 and 3 3, respectively,- on an enlarged scale. Fig. 4 is a cross section of the smoke duct on line 4 4, Fig. 2. Fig. 5 'is a vertical section similarto Fig. l, showing a modified arrangement of thev supporting columns. vFig. 6 is a vertical section similar to Fig. l, showing the improved smoke duct and Ventilating duct applied to a shed \of the arched construction shown in my said patent. Fig. 7 is a cross section similar to Fig. 4, showing a modified form of the smoke duct.

Like reference characters refer to like parts in the several figures.

In Fig. l a shed is represented which contains double tracks A in oneA portion of the shed and a single track B in another portion. C represents the passenger platforms and D the columns or other roof supports arranged with reference to the tracks in any suitable way. The columns may be ar ranged on the platforms, as represented in Fig. 1, or between two tracks, as shown in Fig. 5.

Speccation of Letters Patent.

Patented June Si), 1919i.

Referring to Figs. l-5, E represents the main rafters or ribs of the roof structure which are arranged transversely `to the tracks and supported upon the upright columns or supports D.- These rafters are constructed in the manner of cantalive'r arms, highest over the supports D and decreasing in height toward the`ends of the arms. Their upper sides preferably slope toward their ends and they are connected lengthwise of the tracks by girders F arranged over the columns or supports.r The roof or ceiling G, supported on these rafters, slopes from't-he supports toward the `ends of the cantaliver arms, so that the valley, of each roof section is'arranged between the two lines of supports orcolumns. H represents the longitudinal smoke duct arranged inthe roof lengthwise over each track in the proper position to provide for the free estv cape of the engine exhaust into the outer air. Eachv smoke duct is formed betweeny two longitudinal walls or purlin's it which -are supported by the main rafters lor ribs.

As shown in Figs. 1 and 4, the lower portions vof these'walls are vertical, while the upper portions are inclined and approach euch other upwardly and, as shown in Fig. 7, the walls are inclined throughout, so that the duct isy contracted at its upper end by the upwardly converging Walls or portions of the walls'. In ordinary practice the duct I walls are preferably about two feet and siX inches apart at their lower ends and one foot and three inches at their upper ends. vrll`hese proportions provide ample space for the'entrance and escape of the'exhaust into'and from the duct'and reduce materially the amount of snow or rain which can enter the duct from above. In localities where the precipitation of rain or snow iseX cessive and high winds are frequent, this contraction of. the duct at its upper endis very advantageous and desirable. The walls of the ducts are preferably each constructed of a built-up steel skeleton a', and a covering of concrete 7c, which latter, as shown, may

`formthe greater part ofthe upper inclined portion 'of the Wall. This inclined portion is preferably arranged above the roof or ceiling and the vertical part below the saine,

as shown. lThe main rafters or ribs extend preferably through the smoke duct and have the portion which is arranged in the duct protected by a. concrete covering, while the intermediate rafters or ribs do not evtend thr-ough'tlie ducts and are not so pro` tected. M represents ventilating ducts penetrating the walls of the smoke ducts at suitable' intervals for forming escapev passages 'for steam, hot air or gases which may.

reach the angular space formed by the underside ofthe ceiling and the outer side of the smoke'duct. Each'of these passages has itsiloweij-end arranged to open in the outer side of the wall Iof the duct adjacent to the underside of the ceiling, ascends in the wall and has its upper end opening into the smoke duct. Steam, hot air or gases which reach 4the angle between the underside of the ceiling .and the smoke duct escape readily through this Ventilating duct' the smoke duct. The upper trendl of the Ventilating. duct facilitates such escape and the changes of direction in the Ventilating duct at the junctions of its ascending portion with the outlet and inlet portions ofers considerable resistanceto the flow of steam 4or gases in the reverse ldirection and preA vents; powerful exhaust from forcing steam and smoke through this Ventilating duct from the smoke 'ductintol the shed.

The Ventilating passage M may be formed," as shown, by aycasting which is embedded in the smoke ducttw'all and .which comprises an upright portion m, a lower or inlet -portion n and an upper or outletportion n', the inlet and outlet -portions projecting in opposite directions from' the upright portion, forming an approximately Z-shaped duct or passage. The outlet n preferably slopes downwardly toward the interior of thesmoke duct to prevent water which runs down on the inner side of the smoke duct from entering the Ventilating duct, and the inlet n. preferably slopes downwardly ltoward the outer side of the smoke duet to facilitate the entrance of steam. and. gases into the vent'- duct. If preferred, theventil'ating ductmay be molded in the concrete forming the wall vof the smoke duct, in which case a cast-ing forming. the Ventilating duct vis dispensed. with. The drain pipes j `may be arranged in 'any convenient manner. In-the single trackportion of the shed, represented in Fig. l, drain pipes* O extend from the Valley of the roof onopposite sides ofthe smoke duct along'the'side of lthel cantaliverarms t'o the supporting colunins, while in the double track portion .of

the shed, shown in the same figure, a. drain pipe P extends from the valley vbetween the two smokevducts directly down between theA twovtracks.

In Fig: 7 the upwardly and pass into converging smoke ducts and the, Z-shaped ventilatingducts are represented in connection with ar arched roof construction S, such as is represented in my former patent, to which con` struction these features are applicable as well as to a cantaliver construction. The cantaliver construction can be made somewhat lighter than the arched construction without sacrificing lstrength or rigidity, 'and locates the Valleys of the roof between the ylines of supports instead of overthe same, if

desired. T represents the sky lights which are arranged in the roof `at suitable places. lVh'en the rafters or ribs extendthrough the smoke ducts they operate as windv brakes to break the force of air currentssweeping lengthwise through the ducts. rl`he cantaliver construction described andsiiown but not claimed herein 4is claimed in my divisionalfapplication filed February 20, 1911i, Serial No. 819,979.

I claim as my invention: 1. In a railroad train shed, the combinan tion with a roof having transverse members, l

tion with a roof, of a smoke duct arrangedv thereinlengthwise-v over the track and having its side-walls composed of lower verti` cal portions which are arrangedvbelow the roof and upper'portions which are arranged above the roof and lconverge upwardly, substantially as set forth. 1

4. In a'railroad train shed, the combination with aA roof, of a smoke duct arranged therein lengthwise vover the track -and having opposing side walls which extend below' the roof, said side walls being provided -with Ventilating. ducts penetrating said walls in an upward direction .and having their lower ends opening outwardly below'the `roof and their upper ends opening in a downward direction into the duct, substantially as set forth.

Witness my Ahand this 7th day of November, 1910. e

ABRAHAM 'L. BUSH;

W'itnesses:

EDWARD lVilma-mma, C. B. HORNBECK. 

